Exam 23: Pipe-Welding Symbols

Dimensioning for pipe layout components is accomplished by the addition of ____________________ and notes to the drawings.

A pipe layout can be represented by any number of ____________________ views, by an oblique view, or by an isometric view.

Simple fittings, such as elbows and tees, are ____ represented.

Single-line drawings are generally used to show pipe layouts for nominal pipe sizes of less than ____ inches.

Double-line drawings are used for pipe layouts that use large sizes of pipe and fittings ____________________ inches and over.

A(n) ____________________ pipe layout may specify several methods of connecting the pipe and fittings.

Pipe layouts are shown through the use of single-line and double-line drawings.

The runs of pipe on a pipe layout are shown without any indication of pipe sizes.

A ____ pipe layout may specify several methods of connecting the pipe and fittings.

____ dimensions are applied to the centerlines of the pipe and fittings to serve as reference points for locating items in the layout.

Dimensions are usually expressed in ____ when they measure more than one foot.

Reference to special charts for symbol interpretation are necessary when fabricating pipe layouts that use ____ symbols.

Double-line drawings may include use of the ____ welding symbols to indicate the kinds of welds required for assembling the components of the pipe layout.

For joints that are socket welded, the ends are ____.

Special symbols have been developed to indicate the methods to be used for connecting the components of a pipe ____.

When pipe and fittings are to be butt welded, the ends are ____.

In the case of complex layouts in double-line drawings, the pipe size must be more than 12".

A number of companies have developed their own sets of symbols, both for single-line and double-line drawings.

Pipe ____________________ are drawings use special sets of symbols to identify the components of piping systems, including pipe, valves, fittings, flanges, and equipment.

Single-line drawings are always used to show pipe layouts for nominal pipe sizes of less than 12". This is a standard practice for all companies.